TRUCKEE, Calif. “ Sourcing Interests Group (SIG) is strengthening its presence across the U.S. as it relocates its headquarters to Jacksonville, Fla. The premier organization for sourcing and outsourcing, executives will retain satellite offices in Truckee (Lake Tahoe), Calif., Seattle, Los Angeles, the San Francisco Bay Area, and Clearwater, Fla., while Dawn Evans, president and CEO, will open the new northern Florida main office.